<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>检测账号</title>
		<style type="text/css">
			form{
				width: 300px;
				height: 400px;
				margin: 0 auto;
			}
			input{
				margin: 100px auto;
				outline: none;
			}
		</style>
	</head>
	<body>
		<form action="" method="">
			<input type="text" name="" id="" placeholder="请输入账号" />
			<input type="button" name="" id="" value="提交" />
		</form>
	</body>
</html>
